how is the area of induration determined?
The way mine was read today, the nurse used her pen to gently push one side of the reddened area (which she marked on my skin), and then she used the pen to push on the other side of the reddened area, marked the skin, and measured between the two lines.
Is this the usual way of measuring the induration?
She did say that I am not to have any more skin tests, and that if I do, then the area could become larger.
I had a BCG back in the 70s, and I had a skin test in 1998/99. Is it possible that this week's skin test was one of those skin tests that I need not have had, one of those that became larger?
I'll be going for chest x-ray.